Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f08b5943e6da81…

MALICIOUS

PDF

68.5 KB Created: 2022-05-04 06:44:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: ae2751eeb688eaa8e084aac2880c8d8b SHA-1: 5fbd224295322f0db8d07a3861eede354f3f0069 SHA-256: 98f08b5943e6da810ba3ec1d54a00571b7e7cc342ebc2e5562de37de7bef90b1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jojixisobimat.weebly.com/uploads/1/3/4/7/134771177/fitobowexarajevera.pdf In PDF document text
    • https://tuledekubixa.weebly.com/uploads/1/3/4/7/134722649/2643482.pdfIn PDF document text
    • https://temevukovekolax.weebly.com/uploads/1/3/4/6/134688950/kijotev_tagadoni_sobex.pdfIn PDF document text
    • https://siangyun.com/upfiles/editor/files/xupadesupunixemu.pdfIn PDF document text
    • http://vita24h.com/uploads/userfiles/file/3800459011.pdfIn PDF document text
    • https://safizasuto.weebly.com/uploads/1/3/4/5/134595990/gulovovinivuw_tefuxeruxikep.pdfIn PDF document text
    • https://fedoxoxikux.weebly.com/uploads/1/4/1/3/141352845/lozezo.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1621d6a4ebd87c---vizepegusojenilijoro.pdfIn PDF document text
    • https://pacpartner.net/images_client/imagesfile/81100284466.pdfIn PDF document text
    • https://vimikipemaw.weebly.com/uploads/1/3/4/3/134331773/449cf.pdfIn PDF document text
    • http://555banket.ru/kcfinder/upload/files/25436576457.pdfIn PDF document text
    • https://angelpm.in/ckfinder/userfiles/files/kinaxifivoteros.pdfIn PDF document text
    • https://kodikitowi.weebly.com/uploads/1/3/4/7/134768405/topeper.pdfIn PDF document text
    • https://fipupoluvov.weebly.com/uploads/1/3/0/7/130775710/firipabotob.pdfIn PDF document text
    • http://kbautotech.com/board/datafiles/imagefile/70435455521.pdfIn PDF document text
    • https://wirut.co.za/YmrXLWy8?keyword=parne%20turbine%20pdf%20online%20free%20online%20freePDF link annotation
    • https://moderator.lt/components/com_mijoshop/opencart/image/data/files/1367019895.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000a829.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000a829.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA829 10564 bytes
SHA-256: 3fe18c1319f39126b6c604c429593b36a047e798b022119be0aa83d69cb78500
font_01_sfnt_off0000c017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC017 17208 bytes
SHA-256: bc14c32e42a9724c9ac44e1d3eff1a2f02c2c0352dc61cd55bb21bc45fd9d878
font_02_sfnt_off0000ed18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED18 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1